I haven't run across a GUI program designed to do that, but you should be able to do it through a combination of the sendmail app and cron. Sendmail should be included with your distribution. Cron lets you run a command at pre-defined intervals.

Use Kcron or Gcrontab to set up a simple cron job if you aren't familiar with it already.

Set the job to execute the following instruction where you substitute the email address and filename of your choice.